Bibcode
DOI
Lamb, R. C.; Akerlof, C. W.; Cawley, M. F.; Colombo, E.; Fegan, D. J.; Hillas, A. M.; Kwok, P. W.; Lang, M. J.; Lewis, D. A.; Macomb, D. J.
Bibliographical reference
In: High energy gamma-ray astronomy; Proceedings of the International Conference, Ann Arbor, MI, Oct. 2-5, 1990 (A93-25001 08-93), p. 47-64.
Advertised on:
0
1991
Citations
8
Refereed citations
6
Description
The Whipple Observatory 10 m gamma-ray telescope has been used to search
for TeV gamma-ray emission from a number of objects. This paper reports
observations of six galactic and three extragalactic objects using the
Cherenkov image technique. With the introduction of a high-resolution
camera in 1988, the Crab Nebula was detected at a significance level of
20 sigma in 30 hours of on-source observation. Upper limits at a
fraction of the Crab flux are set for most of the other objects, based
on the absence of any significant dc excess or periodic effect when an a
priori Monte Carlo determined imaging selection criterion is employed.
There are weak indications that one source, Hercules X-1, may be an
episodic emitter.